1: CABUF \ ka-‘buf\ Acronym; Cute Ass But Ugly Face, or alternatively, Cute Ass BUTT Ugly Face in extreme cases. n (1997): a woman who has a physically attractive body, but an unattractive face, most commonly used in situations where one has been deceived by a woman’s disproportionately attractive body and is surprised by her unattractive facial features.
2: CABUF interj (1997) – used to express a strong feeling of surprise and disappointment.
Syn see BUTTERFACE and ISHWABOHUAF

1: "Dude, get a load of the CABUF at the bar. I was checking out her ass for a half-hour before I realized the ugly truth...it made me want to puke."